Electrogenerated chemiluminescence from metal complexes-based nanoparticles for highly sensitive sensors applications

Valenti, G.; Rampazzo, Enrico; Kesarkar, Sagar; Genovese, Damiano; Fiorani, Andrea; Zanut, Alessandra; Palomba, Francesco; Marcaccio, Massimo; Paolucci, Francesco; Prodi, Luca

doi:10.1016/j.ccr.2018.04.011

Cited by 121 publications

(74 citation statements)

References 162 publications

(18 reference statements)

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“…As the most common ECL reagent, ruthenium complex (such as Ru(bpy) 3 2+ , where bpy ¼ 2,2 0 -bipyridine) has been widely used in the elds of drug analysis, immunoassays and nucleic acid analysis because of its easy preparation, low costs and developed technology. [1][2][3] The ECL reaction of Ru(bpy) 3 2+ requires a co-reactant in practical applications. The usual co-reaction reagents are reducing agents such as tripropylamine (TPrA), amino acids, ascorbic acid and quantum dots.…”

Section: Introductionmentioning

confidence: 99%

Electrochemiluminescence of gold nanoparticles and gold nanoparticle-labelled antibodies as co-reactants

et al. 2018

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Section: Introductionmentioning

confidence: 99%

Electrochemiluminescence of gold nanoparticles and gold nanoparticle-labelled antibodies as co-reactants

et al. 2018

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“…By coupling nanomaterials and ECL, the signal-to-noise ratio increases compared with photoluminescence, since light scattering side effects are minimized. The development of new systems and strategies based on nanomaterials have allowed the determination of new analytes, even in very complex matrices [ 126 ]. Therefore, researchers have investigated the improvements that nanomaterials produce in ECL (bio)sensors.…”

Section: Ecl Enzymatic Biosensorsmentioning

confidence: 99%

Electrochemiluminescence Biosensors Using Screen-Printed Electrodes

et al. 2020

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Electrogenerated chemiluminescence (also called electrochemiluminescence (ECL)) has become a great focus of attention in different fields of analysis, mainly as a consequence of the potential remarkably high sensitivity and wide dynamic range. In the particular case of sensing applications, ECL biosensor unites the benefits of the high selectivity of biological recognition elements and the high sensitivity of ECL analysis methods. Hence, it is a powerful analytical device for sensitive detection of different analytes of interest in medical prognosis and diagnosis, food control and environment. These wide range of applications are increased by the introduction of screen-printed electrodes (SPEs). Disposable SPE-based biosensors cover the need to perform in-situ measurements with portable devices quickly and accurately. In this review, we sum up the latest biosensing applications and current progress on ECL bioanalysis combined with disposable SPEs in the field of bio affinity ECL sensors including immunosensors, DNA analysis and catalytic ECL sensors. Furthermore, the integration of nanomaterials with particular physical and chemical properties in the ECL biosensing systems has improved tremendously their sensitivity and overall performance, being one of the most appropriates research fields for the development of highly sensitive ECL biosensor devices.

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“…For the same reason, they have been getting significant attention for applications in solid-state lighting, scintillators, thermal sensor, pressure sensor, bioimaging, catalysis, biosensor, photodynamic therapy, fingerprint imaging, etc. [1][2][3][4][5][6][7][8][9]. Synthesis of LNPs plays a vital role in deciding its optimal usage and designated field [10].…”

Section: Introductionmentioning

confidence: 99%

“…Based on earlier reports, La 2 Hf 2 O 7 have been proposed as a good photo-and radio-luminescent host for lanthanide-doped phosphor materials. Some of the favorable properties include excellent dielectric properties due to its small number of defect densities, ability to accommodate large concentration of dopant both at A and B sites with a general formula of A 2 B 2 O 7 , wide bandgap, moderate phonon E = 745 cm −1 and high stopping power for X-and γ-rays with Z Hf = 72, and high density of 7.9 g/cm 3 . [19][20][21] We have done extensive work on red-emitting La 2 Hf 2 O 7 :Eu 3+ (LHOE) down-converting nanoparticle (NP) powders for several applications in the areas of phosphors, scintillators, thermographic phosphors, etc.…”

Section: Introductionmentioning

confidence: 99%

Luminescent PVDF nanocomposite films and fibers encapsulated with La2Hf2O7:Eu3+ nanoparticles

et al. 2020

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Luminescent films and fibers are in high demand in display devices and optoelectronics owing to their higher flexibility and mechanical strength compared to powder samples. Keeping that in mind, we have encapsulated La 2 Hf 2 O 7 :Eu 3+ (LHOE) nanoparticles (NPs) synthesized by a molten salt method into polyvinylidene fluoride (PVDF) films and fibers. The LHOE-PVDF nanocomposite fibers were manufactured using a Forcespinning® technology while the counterpart films were fabricated by a drop-casting technique. Their photophysical properties were analyzed and compared. Specifically, the red emission with optimum lifetime, color coordinates, and branching ratio of the LHOE NPs can be reproduced even when incorporated inside the PVDF films and fibers. Our studies demonstrate that the LHOE-PVDF films have better emission output, excited-state lifetime, quantum yield, and color purity than the fibers. This is attributed to lower defect density and better surface texture of the LHOE-PVDF films compared to the fibers. Based on the Judd-Ofelt analysis, we have also elucidated that the Eu-O bond is more polarizable and has a higher degree of covalency in the LHOE-PVDF films compared to that in the fibers. The trend of the Judd-Ofelt parameters suggested that Eu 3+ has a more asymmetric environment in the films compared to the fibers which impart higher red color purity to the former.

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Electrogenerated chemiluminescence from metal complexes-based nanoparticles for highly sensitive sensors applications

Cited by 121 publications

References 162 publications

Electrochemiluminescence of gold nanoparticles and gold nanoparticle-labelled antibodies as co-reactants

Electrochemiluminescence of gold nanoparticles and gold nanoparticle-labelled antibodies as co-reactants

Electrochemiluminescence Biosensors Using Screen-Printed Electrodes

Luminescent PVDF nanocomposite films and fibers encapsulated with La2Hf2O7:Eu3+ nanoparticles

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